Pi Equation Biochemistry. Abs is short for absolute value. Select an amino acid then drag the ph arrow around to see how the percentages of amino acid species and the total net charge change with ph.
Plug your number into the following formula and the result will be roughly equal to pi. In the reaction for biological nitrogen fixation what does the pi stand for in the products. A table of pk a and pi values can be found on the next page.
Phosphatidylinositol 3 5 bisphosphate also known as ptdins 3 5 p 2 or pi 3 5 p 2.
Pk log10kd kd 10 pk calculating the proportion with h associated starting with the dissociation constant equation we need to derive an equation for the proportion of amino acid molecules that have h associated at a given ph. Sqrt is short for square root. Abs is short for absolute value. The isoelectronic point or isoionic point is the ph at which the amino acid does not migrate in an electric field.
